#334669
Closest named color: Dark Grey Blue (#29465B). oklch(39.5% 0.064 262), rgb(51, 70, 105).
Aa
White text reads best on this color (9.45:1).
About this color
#334669 is a dark, muted blue. In OKLCH its lightness is 39%, its chroma 0.064 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.45:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.45:1 |
Values
| HEX | #334669 |
| RGB | rgb(51, 70, 105) |
| HSL | hsl(219, 35%, 31%) |
| OKLCH | oklch(39.5% 0.064 262) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #334669 | 9.45:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #334669 | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #334669 text on white | 9.45:1 | AAA | Lc 91.8 | Preferred for body text |
| #334669 text on black | 2.22:1 | Fails | Lc -10.6 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D0DAEB
oklch(88.6% 0.026 261.1)
-
Step 300
300
#B0C1E1
oklch(80.9% 0.049 263.1)
-
Step 400
400
#86A1D1
oklch(70.6% 0.077 261.7)
-
Step 500
500
#6889C5
oklch(63% 0.098 261.9)
-
Step 600
600
#5072B2
oklch(55.6% 0.108 262.2)
-
Step 700
700
#415F99
oklch(49% 0.1 262.5)
-
Step 800
800
#354E7C
oklch(42.6% 0.083 261.8)
-
Step 900
900 (this color)
#334669
oklch(39.5% 0.064 262)
-
Step 950
950
#1B263A
oklch(26.9% 0.041 261.9)
#334669 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #39496A | 0.013 |
| Deuteranopia (no green cones) | #334468 | 0.006 |
| Tritanopia (no blue cones) | #1C4E52 | 0.059 |
| Achromatopsia (no color) | #464646 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334669
#334669
oklch(39.5% 0.064 262)
- #574319
#574319
oklch(39.5% 0.064 83.3)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #334669, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Charcoal #264653 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.048
- Light Navy #155084 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.057
- Dark Slate Gray #2F4F4F ΔE 0.061
- Dark Blue Grey #1F3B4D ΔE 0.063
- Dusk Blue #26538D ΔE 0.064
Use #334669 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.